CALIFORNIA ENVIRONMENTAL
PROTECTION AGENCY
CDQAP – WDR General Order
Reference Binder
TAB 6.10, Version March 2011
SAMPLING AND ANALYSIS PLAN
FOR EXISTING MILK COW DAIRIES UNDER
WASTE DISCHARGE REQUIREMENTS
GENERAL ORDER NO. R5-2007-0035
PART I. DAIRY FACILITY INFORMATION
Name of Dairy or Business Operating the Dairy: _________________________________
Physical address of Dairy:
__________________________________________________________________________________________
Number and Street
City
County
Zip Code
PART II. DOCUMENTATION OF QUALIFICATIONS AND PLAN
DEVELOPMENT
I certify that I meet the requirements as a certified specialist in developing nutrient
management plans as described in Attachment C of Waste Discharge Requirements
General Order No. R5-2007-0035 and that I prepared the Sampling and Analysis plan.
____________________________________________________________________________________
QUALIFICATIONS OF CERTIFIED NUTRIENT MANAGEMENT SPECIALIST
___________________________________________________________________________
SIGNATURE OF TRAINED PROFESSIONAL
DATE
____________________________________________________________________________________
PRINT OR TYPE NAME
____________________________________________________________________________________
MAILING ADDRESS
____________________________________________________________________________________
PHONE NUMBER
EMAIL ADDRESS
PART III. OWNER AND/OR OPERATOR CERTIFICATION
I certify under penalty of law that I have personally examined and am familiar with the information
submitted in this document and all attachments and that, based on my inquiry of those individuals
immediately responsible for obtaining the information, I believe that the information is true,
accurate, and complete. I am aware that there are significant penalties for submitting false
information, including the possibility of fine and imprisonment.
_____________________________________________________________________________
SIGNATURE OF OWNER
SIGNATURE OF OPERATOR
_____________________________________________________________________________
PRINT OR TYPE NAME
PRINT OR TYPE NAME
_____________________________________________________________________________
DATE
DATE
Version 2-29-08; page 1
SAMPLING AND ANALYSIS PLAN
This plan needs to be certified by a certified nutrient management specialist, maintained as part of the NMP, and included in
the list of items completed in the July 1, 2008 Statement of Completion. The plan must be made available to Central Valley
Water Board staff during their inspections of the dairy and submitted to the Executive Officer when requested by the
Executive Officer.
SOLID MANURE SAMPLING AND ANALYSIS PLAN
Minimum Sampling
Frequency
Each application to each land
application area
Sampling Method
Source Description
(pond, corral, separator, or
settling basin solids, or
other)
Minimum Analyses
Field
Total weight (tons)
applied and percent
moisture
Twice per year
Annually
Percent Moisture
General minerals, including:
calcium, magnesium, sodium,
sulfur, chloride, and fixed solids
Total nitrogen, total phosphorus,
total potassium, and percent
moisture
Once every two years
Each offsite export of manure
Laboratory
Total weight (tons)
exported
Total dry weight (tons)
manure applied
annually to each land
application area, and
total dry weight (tons)
manure exported offsite
annually
Percent moisture
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PROCESS WASTEWATER (LIQUID MANURE) SAMPLING AND ANALYSIS PLAN
Minimum Sampling
Frequency
Sampling Method
Source Description
(pond identification)
Minimum Analyses
Laboratory
Field
Date applied and
volume (gallons or
acre-inches) applied
None
Quarterly during one
application event
Electrical conductivity
Nitrate-nitrogen (only
when pond is aerated),
ammonium-nitrogen, total
Kjeldahl nitrogen, total
phosphorus, total potassium
and total dissolved solids
Once every two years
None
General minerals, including:
calcium, magnesium, sodium,
bicarbonate, carbonate, sulfate,
and chloride
Each application
SOIL SAMPLING AND ANALYSIS PLAN
Minimum Sampling
Frequency
Once every five years from
each land application area
(can sample 20% per year)
Sampling Method
Source Description
(soil sampling locations)
Field
None
Recommended:
Spring pre-plant for each crop
Recommended:
Fall pre-plant for each crop
None
Minimum Analyses
Laboratory
Soluble phosphorus (Olsen)
0 to 1 foot: Nitrate-nitrogen and
organic matter
1 to 2 foot: Nitrate-nitrogen
0 to 1 foot: Electrical
conductivity, nitrate-nitrogen,
soluble phosphorus, potassium,
organic matter
1 to 2: Nitrate- nitrogen
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PLANT TISSUE SAMPLING AND ANALYSIS PLAN
Minimum Sampling
Frequency
Sampling Method
Source Description
(land application area)
Field
Minimum Analyses
Laboratory
Percent wet weight
Total weight (tons) of
harvested material
removed from each land
application area
At each harvest from each
land application area
Mid-season, if necessary to
assess need for additional
nitrogen during the growing
season (only if Discharger
wants to add fertilizer in
excess of 1.4 times the
nitrogen expected to be
removed by the harvested
portion of the crop)
Total nitrogen, total phosphorus,
and total potassium, fixed solids
(ash) expressed on a dry weight
basis
Total nitrogen, expressed on a
dry weight basis
IRRIGATION WATER SAMPLING AND ANALYSIS PLAN1
Minimum Sampling
Frequency
Each irrigation event for each
land application area
One irrigation event during
each irrigation season during
actual irrigation events – for
each irrigation water source
(well and canal)
Sampling Method
Source Description
(well or canal
identification)
Field
Minimum Analyses
Laboratory
Volume (gallons or
acre-inches)2 applied
and date applied
Electrical conductivity, total
dissolved solids, and total
nitrogen3
Data collected to satisfy the
groundwater monitoring
requirements will satisfy this
requirement for irrigation wells
1
Irrigation water from each well source and canal that is used on all land application areas are to be monitored.
Initial volume measurements may be the total volume for all land application areas. Actual volume measurements for each irrigation source for each land
application area are to be recorded no later than July 1, 2011.
3
In lieu of sampling the irrigation water, the Discharger may provide equivalent data from the local irrigation district.
2
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